Table 1. Descriptive Statistics for the demographic information, physiological variables, and questionnaire scores.

Note. Abbreviation: RMSSD = root mean square of successive differences; RRS_total = total score of Ruminative Response Scale; BDI = Beck Depression Inventory; MASQ_depression = Anhedonic Depression score of the Mood and Anxiety Symptoms Questionnaire; DASS_depression = depression subscale score of the Depression, Anxiety, and Stress Scale; Depression_standardized = Z-scores from BDI-II, MASQ, and DASS. 

Table 2. Correlation matrix between rumination and the level of depressive symptoms